Geauga County

Formed 31 Dec 1806, 408 square milesParent county: Trumbull

Evolution of county from date of formation until it assumed its final form1 Mar 1806: Erected and organized7 Jun 1808: Part of Ashtabula attached temporarily until organization of Ashtabula. Cuyahoga attached temporarily until organization of Cuyahoga7 Feb 1809: Part of Huron attached temporarily until organization of Huron1 May 1810: Diminished y organization of Cuyahoga. Part of Huron attached to Cuyahoga temporarily until organization of Huron. Part of Geauga attached to Cuyahoga temporarily until organization of Huron.6 Mar 1840: Part of Lake attached temporarily until organization of Lake20 Mar 1840: Diminished by organization of Lake29 Jan 1841: Part attached to Cuyahoga and part of Cuyahoga attached11 Jan 1843: Part attached to Cuyahoga

In 1807, the county seat was in New Market, but was moved the following year to Chardon.